I've got a little FN that does this, it's part of my Progress bar code.

You pass it any color in RGB-HTML format(Ie, "FFFFFF" for white, "FF0000" for red, etc.)

the calling convention for this is simple:

myhtmlcolor$=PSTR$(FN MIXCOLORS("FFFFFF","FF0000")) and myhtmlcolor$ will turn out "hot pink", because we mixed white and red. Also, as I recall, mixing Red and Green will give you an olive brown, like you'd expect. Mixing yellow and blue will turn it green, too. :-)